| Value | Category | Cases | |
|---|---|---|---|
| 0 | not weighed | 191 |
21.7%
|
| 1 | from card | 265 |
30%
|
| 2 | from recall | 198 |
22.4%
|
| 9 | special answers | 228 |
25.9%
|
| Sysmiss | 5873 |